Complex sentence: Jack goes to Gertie's apartment to get some clothes for her and while is there, Jim Crelliman (C. Henry Gordon) walks into her apartment and offers him $200,000 to take Gertie and move to Europe.
Split into simpler sentences: Jack goes to Gertie's apartment to get some clothes for her. While he is there, Jim Crelliman (C. Henry Gordon) walks into her apartment and offers him $200,000 to take Gertie and move to Europe.