Jennifer Garner seems unfazed by Ben Affleck's top-secret wedding to Jennifer Lopez, despite the fact that her ex-husband apparently did not inform her of the ceremony until the last minute.

The 50-year-old actress appeared cheerful on the set of her new TV show, unfortunately titled "The Last Thing He Told Me," as captured by Radar.  It can even be said that she finds the whole thing laughable and amusing given her demeanor.

Despite having fled to Lake Tahoe while her ex-husband eloped with J. Lo in Las Vegas, Jennifer Garner reported for work in Los Angeles. The celebrity wore light-washed trousers, a striped shirt, and sneakers as she arrived on set. When Jennifer Garner came from her trailer wearing olive green cargo pants, a white t-shirt, and glasses, she had turned into her character Hannah. 

Affleck's ex-wife did not appear depressed when mingling with her co-stars. Some ex-wives would have gone berserk if they received last-minute details about ther ex husband's top-secret nuptials. 

Garner maintained a professional and cheerful demeanor on set, preventing her personal drama from affecting her work life. 

According to RadarOnline.com, Affleck didn't let his ex know that he was secretly marrying J Lo until the very last minute, giving her a heads-up the night before the ceremony. "Ben did tell Jen about the wedding, but I'm told that it was only Friday at the earliest. It was very, very minimally planned in advance and was largely spur of the moment," the source said. 

READ ALSO: The Original Final Girl, Jamie Lee Curtis, Is Taking On Michael Myers In The First Trailer For 'Halloween Ends.' 

An insider divulged to Page Six that there was minimal planning in advance and that the event was largely unplanned. 

Allegedly, only one of Affleck's children with Garner was present to witness his marriage to J. Lo. 

According to rumors, their 13-year-old daughter Seraphina and one of J. Lo's 14-year-old twins, Emme, were the only children present. 

Emme's twin brother Max, along with Affleck's 16-year-old daughter Violet and 10-year-old son Sam, were absent from the Sin City wedding. Violet stayed at home since she is extremely loyal to her mother, according to reports. 

Affleck and J Lo are organizing a large party for the end of the month at the actor's mansion in Georgia. While only two of their children attended their wedding in Las Vegas, J. Lo reportedly brought her entire glam squad.

It remains to be seen if Violet AND Jennifer Garner can be in attendance in the bash planned. 

READ MORE: Hulu's Trailer For 'Mike' Tells The Story Of Mike Tyson, A Man Steeped In As Much Glory As Scandal