===Later career===Falk was a close friend of independent film director John Cassavetes and appeared in his films "Husbands," "A Woman Under the Influence", and, in a cameo, at the end of "Opening Night".
Serija "Columbo" je bila tako popularna, da se je ustvarjalec serije, William Link, odločil izdati kratke zgodbe, imenovane "The Columbo Collection" (Crippen & Landru, 2010); knjiga je vključevala risbo Falka v vlogi Columba, ki jo je narisal Peter Falk sam.