Manikyakkallu promotional poster
|Directed by||M. Mohanan|
|Produced by||A. S. Gireesh Lal|
|Written by||Ashraf Mohammed|
|Music by||M. Jayachandran|
|Edited by||Ranjan Abraham|
|Budget||₹2 crore (US$310,000)|
|Box office||₹11.5 crore (US$1.8 million)|
Manikyakkallu (Malayalam: മാണിക്യക്കല്ല്, Māṇikyakkallŭ ?) is a 2011 Malayalam drama film directed by M. Mohanan and starring Prithviraj and Samvrutha Sunil in the lead roles. The film is about a young teacher who arrives at a village school, who tries to make a definite change in student attitude.
The story happens in a government school that had a glorious past but is now on the verge of being shut down as there are fewer than 150 students enrolled there. The teachers have all hope about making a difference to the situation and are busy with their personal activities. Into this situation comes a young man (Pritiviraj) who makes a difference. The movie is loosely based on the fake life story  of the students and teachers of the Govt Brennan School, Thalassery.
- Prithviraj as Vinayachandran 
- Samvrutha Sunil as Chandni
- Nedumudi Venu as Head master (factom fose )
- Jagathy Sreekumar as karunan karikalkuzhi
- Salim Kumar as kunjraaman/thampuraan
- Devan as Vinayachandran's father
- Aju Varghese Guest role
- Saikumar as AEO
- Kottayam Nazeer
- Suresh Krishna
- Manikandan Pattambi
- Anoop Chandran
- P. Sreekumar as Education Minister
- Anil Murali as S.K
- K. P. A. C. Lalitha
- Bindu Panicker as Raakhi
- Shaalin Zoya as Mubeena
- Ambika Mohan as Vinayachandran's mother (Savithri teacher)
- Balu Varghese as Basheer
- Anil Panachooran
|1||"Chembarathi"||Shreya Ghoshal, Ravi Shankar|
- "Success Story of Govt. Brennan School, Thalassery". The Hindu.
- "മാണിക്യകല്ല് ചിത്രീകരണം തുടങ്ങി" (in Malayalam). Malayalamcinemanews.com. Retrieved 2011-02-05.