Complex sentence: At one time Lloyd had lined up Henry Fonda and Senta Berger for the film to be made in Mexico but the reluctance of many film distributors to financially back Fonda and changes in the economic situation made filming in Mexico more expensive than planned.
Split into simpler sentences: At one time Lloyd had lined up Henry Fonda and Senta Berger as cast for the film, which he planned to shoot in Mexico. Lloyd recounted that, at the time, many film distributors were reluctant to back a film starring Fonda, and changes in the economic situation made filming in Mexico more expensive than planned.