"...'Walter Keane' (Waltz) became a national celebrity and talk show fixture in the 1950's after he pioneered the mass production of prints of big-eyed kids, using his marketing savvy to sell them cheaply in hardware stores and gas stations. Unfortunately, he claimed to be the artist. That role was played by Margaret (Amy Adams), his shy wife.
"She generated the paintings from their basement and Walter's contribution was adding his signature to the bottom. The ruse broke up their marriage, and when she tried to make it known that she authored the paintings, they ended up in a court battle..."
Cast also includes Krysten Ritter as 'DeAnn',