Our Very Own - 1950 - production still

Ann Blyth gives the evil eye to sister Joan Evans in the above production still of Our Very Own (1950).  Farley Granger plays her boyfriend, and young Martin Milner is a hoot as he pursues Joan (more interested in the food on the buffet table here).  That's Donald Cook in the background as the girls' concerned dad.

From my book, Ann Blyth: Actress. Singer. Star.:

Ann Blyth, with top billing here, stars as the teen who discovers she was adopted, and that her adoption has been treated like a family secret.  Unlike some of the other troubled young women she had played up to this time in such films as Mildred Pierce (1945), Swell Guy (1946), and A Woman’s Vengeance (1948), she’s a good girl here, a model daughter, poised, mature, far less mercurial than those other girls, and her strong sense of self is almost a metaphor for her confident and comfortable post-war world—that will be shaken to the core by something so small as a birth certificate.   

For more on Our Very Own, have a look here at this post on my Another Old Movie Blog.
http://anotheroldmovieblog.blogspot.com/2014/05/our-very-own-1950.html