Late '70s/early '80s movie
For over a decade I have been trying to remember the name of a movie from my early years. I first saw this movie in the early '80s (1982-1985), but the movie may have been made/released in the late '70s. What I can remember from the movie is: three or four professional thieves trying to steal some sort of treasure in some old room/tomb where they are not able to touch the floor... towards the end one of the guys touches something (either a statue or treasure) and turns into a lizard of some sort. Please help!