Freddie Prinze Jr. is "glad" he was able to keep quiet about Sarah Michelle Gellar's secret cameo appearance in I Know What You Did Last Summer.
The actor returned for the new sequel almost 30 years after he starred in the original 1997 slasher opposite his wife Sarah and film fans initially thought the Buffy The Vampire Slayer star would be unable to join him onscreen because her character met an untimely end in the first film. However, it has since been revealed Sarah's beauty queen alter-ego Helen returned for a dream sequence and Freddie was thrilled to have been able to keep it secret until the movie hit cinemas.
