def __in__(self, arg):
_a = os.path.splitext(arg)<EOL>if _a[<NUM_LIT:1>] not in ('<STR_LIT>', '<STR_LIT>'):<EOL><INDENT>arg = _a[<NUM_LIT:0>]<EOL><DEDENT>return arg in self.visible_files or (self.adj_tokens[<NUM_LIT:0>] is not None and arg == "<STR_LIT>") or (self.adj_tokens[<NUM_LIT:0>] is None and self.adj_tokens[<NUM_LIT:1>] is not None and arg == "<STR_LIT>")<EOL>
Check, if movie of name `arg` is present in the object.

Parameters
----------
arg : str
    Filename.