On 23 Aug 1963, DV announced that Universal Pictures had purchased rights to film a second story by Norman Barasch and Carroll Moore, who wrote the studio’s previous romantic comedy, Send Me No Flowers (1964, see entry). An 18 Nov 1963 DV news report indicated that the script, written by Stephen Kandel, had been added to the production slate of producer Elliott Kastner. Items in the 27 Nov 1963 Var and 30 Jan 1964 DV stated that George Maharis and James Darren were considered for the leading male role. A few months later, however, the 12 Mar 1964 DV issue reported the signing of Gene Kelly to direct a new screenplay by David R. Schwartz.
       Shortly thereafter, Sandra Dee agreed to play “Joan Howell,” with Warren Beatty as her intended co-star. However, the 12 Aug 1964 DV revealed that Beatty was also to be involved through his company, Tatira Productions, and insisted on top billing. Dee refused to relinquish first credit, and after significant negotiations, Beatty withdrew from the picture altogether. According to a 28 Dec 1965 DV item, Kastner also left Universal around this time, and he was replaced by Send Me No Flowers producer Harry Keller. Meanwhile, Dee’s husband, actor-singer Bobby Darin, accepted the role of “Tom Milford,” marking their third onscreen pairing following Come September (1961, see entry) and If a Man Answers (1962, see entry). A 15 Sep 1964 DV news item reported that Richard Thorpe had assumed directing duties after Kelly was also forced to bow out due to his contractual commitment to Beau Geste (1966, see entry).
       Various contemporary sources, including a 23 Oct 1964 DV production chart, noted that principal photography began 15 Oct 1964. Exterior filming was completed first in New York City while Keller was there doing location work for Mirage (1965, see entry), before the unit returned to the studio facilities in Universal City, CA.
       An 18 Nov 1964 DV casting item claimed Beverly Adams appeared in the picture, but her participation could not be confirmed.
       According to a 30 Dec 1964 Var brief, Darin also composed the score with his longtime musical arranger, Richard Wess.
       A “National Boxoffice Survey” in the 18 Aug 1965 issue of Var indicated that That Funny Feeling had already opened in Kansas City, MO, and Louisville, KY. The picture was released in Los Angeles, CA, on 25 Aug 1965, and on 20 Oct 1965 in New York City, where it played as a double-feature with Universal’s Fluffy (see entry).