A ripple dissolve is a type of transition characterized by a wavering image that is usually employed to indicate a change to flashback material, commonly a character's memory of an event. Sometimes the ripple dissolve is used as a transition to an imagined event or action. A series of three ripple dissolved appeared in "Mamma mia"! (2008) as Donna (Meryl Streep) discovers her three former lovers in the attic of her Greek villa. The brief ripple dissolved transport each man visually back in time to reveal their 1960's "hippy", "love children" appearances as Donna remembers them.