"The hardest thing about movie acting is that if you're playing a character who changes within the movie, you've got to do that, but you've got to do it out of sequence, because we never have gotten to shoot in sequence, and that's really, really tough"

John Sayles, an accomplished filmmaker and writer, highlights a distinct challenge faced by stars in the movie market in his quote: the difficulty of performing functions that require character development or change within a story. The essence of this obstacle depends on the fact that films are often shot out of sequence due to logistical and financial factors to consider. This non-linear method to filmmaking needs actors to possess a deep understanding of their characters' emotional and psychological journeys so they can convincingly portray these shifts without the benefit of sequential development.

In films, scenes are hardly ever shot in the order they appear in the end product. For example, a star may shoot a climactic scene, filled with intense emotion, before filming the events leading up to it. This requires a high level of ability from the star, as they need to internalize the character's arc and deliver an authentic efficiency that coherently lines up with scenes that have not yet been shot or completely developed. The star needs to psychologically piece together the story and maintain consistency in their representation, no matter the shooting schedule.

Sayles's observation highlights the complexity of an actor's craft. Unlike phase actors, who can experience and interpret their characters' journeys in real-time from beginning to end, film stars must continuously toggle in between various emotions. This requires not only an extensive understanding of the script and character but also the capability to remember and re-integrate numerous emotional hints and inspirations at a minute's notice.

Additionally, the actor's capability to effectively interact a character's development relies greatly on their cooperation with the director, who should supply assistance and context to guarantee coherence. Therefore, Sayles's quote serves as a testimony to the elaborate and demanding nature of film performing, highlighting the nuanced challenges stars deal with beyond the surface area glamour of the occupation.