IF

1. Original Score — Michael Giacchino
2. IF Theme — Michael Giacchino
3. Pure Imagination (from Willy Wonka) — Featured in film
4. What a Wonderful World — Louis Armstrong (featured)

• The film assembles one of the largest all-star voice casts in live-action/animation hybrid history — including Brad Pitt, Matt Damon, George Clooney, Bradley Cooper, Blake Lively and Emily Blunt, many of whom are close friends of director John Krasinski and producer Ryan Reynolds.
• Cinematographer Janusz Kaminski is a two-time Oscar winner best known for his work with Steven Spielberg on Schindler's List (1993) and Saving Private Ryan (1998) — IF marks a rare departure from the Spielberg filmography for Kaminski.
• Michael Giacchino, who scored the film, is an Oscar winner for Up (2009) and one of Hollywood's most prolific composers, having also scored Ratatouille, Spider-Man: No Way Home and The Batman.
• John Krasinski wrote IF during the COVID-19 pandemic, inspired by his own daughters and a desire to make a film about the imagination of childhood.
• Ryan Reynolds co-produced the film through his Maximum Effort production company — the same banner behind his other 2024 hit Deadpool & Wolverine.
• Louis Gossett Jr. recorded his role as Lewis the IF shortly before his death in March 2024, making IF one of his final film appearances.
• Despite mixed critical reviews (49% Rotten Tomatoes), audience scores were significantly higher, and the film became a streaming hit on Paramount+ and Netflix after its theatrical run.

"You think imaginary friends just disappear when kids grow up? They don't."

"The world is a lot bigger when you let yourself believe."

• The Brooklyn Heights neighbourhood exteriors change between shots in several street scenes.
• Bea's bedroom layout shifts between her first and later scenes in the apartment.