river pheonix is not involved in films
he starred in the science fiction adventure film explorers lrb 1985 rrb  and had his first notable role in 1986 s stand by me  a comingofage film based on the novella the body by stephen king
explorers is a 1985 american science fiction fantasy family film written by eric luke and directed by joe dante
stand by me is a 1986 american comingofage drama film directed by rob reiner and starring wil wheaton  river phoenix  corey feldman  and jerry oconnell