HARD question.

[serafim]

just one scene om my mind, a guy on high school or college, he works on a lab.. he discovers a mad possion that turns him  on something that i cant remember =P... he hides the posions in a hole on the lab, behind a painting...

no hope for an awnser.

thanks

[Jack]

In the TV show Dark Shadows, there's a Dr. Jekyll / Mr. Hyde plotline that involves a professor, Dr. Cyrus Longwroth, changing into his evil alter ego.  He hides his potion in a safe behind a painting in his lab.  This clip doesn't show the safe, but...it does show him almost knocking over a brick pillar 

http://www.youtube.com/watch?v=4kdG18RXgEM#

[serafim]

no, it was a movie with young boys/girls, made around the 90's

thanks for the shot!

[Jordan]

Was it a comedy? Could be "Zapped Too" where the lead character develops telekinesis after drinking a special formula. He keeps the formula hidden behind a painting or something too.

[RCMerchant]

Sounds alot  like HORROR HIGH (1974) .Id post a link but I cant  because  Im online  byway of a Playstation 3.

[Mofo Rising]

How young were the actors? It could be any number of films.

Perhaps The Invisible Maniac or Jekyll & Hyde Together Again?