Data storage on photographic film has become a prospective alternative for long-term digital archiving. The storage capacity of such systems is strongly limited due to intersymbol interference (ISI) which can be significantly reduced by using equalization. This contribution presents two algorithms which jointly perform equalization and demodulation for data storage on film with non-linear, non-Gaussian, and amplitude-dependent characteristics. The performance of both approaches is investigated by means of simulations based on a realistic channel model.