Original: Thomas and Johnston retired in 1978, and both later enjoyed cameos in the Brad Bird-directed films The Iron Giant (Warner Bros., 1999) and The Incredibles (Pixar, 2004).
Simplified: Thomas and Johnston retired in 1978, and both later enjoyed cameo appearances in the Brad Bird-directed films The Iron Giant (Warner Bros., 1999) and The Incredibles (Pixar, 2004).