|Directed by||Kevin O'Neill|
|Written by||Frances Doel
|Music by||Cynthia Brown|
|Cinematography||Eduardo Flores Torres|
|Editing by||Vikram Kale
|Country||Mexico and United States|
|Release date||March 13, 2010
January 21, 2011
|Running time||90 minutes|
The film premiered on Syfy on the evening of March 13, 2010 before 2 million viewers. Dinoshark followed up Dinocroc; Roger Corman proposed a sequel (Dinocroc 2) but Syfy felt that television audiences tended to respond better to new-but-similar ideas more than direct sequels. April MacIntyre, of Monsters and Critics, compared the film to old B movies. A sequel titled Dinocroc vs. Supergator was released on June 26, 2010. Roger Corman said that while the plot is hard to believe, the film can be enjoyed if belief is suspended and that the film is internally consistent.
The film is a remake of the 1979 film Up from the Depths.
Dinoshark has been described as Dinocroc with flippers. Before the film was released, Margaret Lyons of Entertainment Weekly said that this along with Sharktopus were destined to be classics of the "awesomely awful made-for-TV movie genre".
The film opens with a baby dinoshark swimming away from a broken chunk of Arctic glacier that calved due to global warming. Three years later, the dinoshark is a ferocious predatory adult and kills tourists and locals offshore from Puerto Vallarta, Mexico. The protagonist, Trace, is the first to notice the creature and witnesses his friend getting eaten, but has trouble convincing people that a creature of such antiquity could still exist. After being apparently killed by a grenade, the dinoshark surfaces again, but is killed with a spear through the eye, its only weak spot.
- Eric Balfour as Trace McGraw
- Iva Hasperger as Carol Brubaker
- Aarón Díaz as Luis
- Roger Corman as Dr Reeves
- Guillermo Iván as José
- Humberto Busto as John Grace
Critics and reviewers tended to share similar views on the nature of the film, seeing it as a continuation in the tradition of older B movie horror/monster films, with the implausible plots, stock sequences and questionable acting typical of that genre.
Critics were divided between those who felt this made it highly entertaining and those who felt this made the film exceptionally poor in quality and panned it for its lack of redeeming features. In both cases though, critics conceded that it stood a chance of becoming a classic of its kind, if for nothing else than for a level of awfulness that mandated watching. April Macintyre of Monsters and critics gave it a positive review: "Dinoshark is epic!" Referring to "fun films, laced with implausible plots, brilliant poster art and laughable dialogue [that] demanded that you show up ready to suspend disbelief, prepare for a scare and always left the audience entertained", she wrote that some aspects are "hilariously over the top. Think Al Pacino's Cuban accent in Scarface times ten", but concluded that in the context of its genre, "We wouldn't want it any other way."  Genre Online felt likewise, that there were "a few too many stock establishing shots", which were repetitious, but the special effects are "actually pretty good", concluding the film should be approached "with a sense of humor".
On the negative side, Dread Central was condemnatory of the "rubbery" monster, "exceptionally chintzy" effects, and "some of the worst acting ever seen in a Syfy original movie", concluding that users who did not regularly watch "schlocky shark flicks" would probably enjoy laughing at "this silly offering in which half the cast sound like they were voiced over by George Lopez". Chicago Now gave it one star out of 5 as a "low-budget joker" and "cheesy, mindless fun", stating there had to be a "fun drinking game" in it and the best thing about it was the title.
- MacIntyre, April (2010-03-05). "Review: Dinoshark is epic, Syfy's Roger Corman fish tale airs Sat, March 13". Monsters and Critics. Retrieved 2010-06-10.
- "Syfy Announces Schedule Of Upcoming Saturday Original Movies". Broadway World. Retrieved 2010-06-10.
- "Syfy teams with Corman for "Dinoshark" movie". Hollywood Reporter. 2010-02-17. Retrieved 2010-06-10.
- "Sharktopus Plot Details and Dinoshark Image Revealed!". Dread Central. Retrieved 2010-06-10.
- Lyons, Margaret (2010-02-18). "'Dinoshark,' 'Sharktopus,' and the 10 greatest Syfy titles and taglines ever". Entertainment Weekly. Retrieved 2010-06-10.
- "Dinoshark: SyFy Original Movie Review". Genreonline.net. 2010-03-13. Retrieved 2010-06-10.
- "Dinoshark (2010)". Dread Central. 2010-03-15. Retrieved 2010-06-10.
- "Dinoshark: 'Dinoshark' sinks, but it's a whale of a good time - Show Patrol". Chicagonow.com. Retrieved 2010-06-10.
- "Dinoshark: Roger Corman's back with sharktacular B-movie mayhem - Show Patrol". Chicagonow.com. Retrieved 2010-06-10.