[2] In 2006, 2011, and 2017 the artist was chosen by Disney Pixar to provide the Romanian voice of Flo in the animated trilogy Cars.

She collaborated with the Romanian magazine journalist Mihai Maximilian, whom she married in 1969 shortly after her divorce from Dan Puican.

She starred in over 25 films, such as Nea Mărin Billionaire (1979), On the Left Bank of the Blue Danube (1983), and Everyday I Miss You (1988).

Popescu starred in television from its inception, in theater and entertainment programs, on scripts by Mihai Maximilian, Grigore Pop, Octav Sava, and Dan Mihăescu.

She played in the TV series Cuscrele (2005–2006) as well as in the soap opera The War of the Sexes (2007–2008), Queen (2008–2009) and Aniela (2009–2010) as Coana Chiva.

Stela Popescu was found dead by her adopted-daughter Doina Maximilian on 23 November 2017 inside her home in Bucharest.

[5] Popescu's body was exhibited at the Constantin Tănase Theater on Friday and was buried on 26 November at the cemetery at Cernica Monastery.