Complex sentence: His story is portrayed in the 1991 film "The Inner Circle"; however, the name of the character portraying him was changed to Ivan Sanchin, possibly in reference to Russian folk tales with a bumbling, dumb character named Ivan.
Split into simpler sentences: His story is portrayed in the 1991 film The Inner Circle. The change to the name Ivan may have been in refference to Russian folk tales with a bumbling, dumb character named Ivan.