For anyone who loves the 1961 film \u201cWest Side Story,\u201d the musical and dramatic intensity of Rita Moreno remains in our movie memory. The performance that brought her an Oscar feels as fresh and authentic today as it did all those years ago. Yet there\u2019s more to this remarkable lady than movies she has made, awards on her shelf, or accomplishments detailed in photos around her home. Yes, she is a member of that exclusive club known as EGOT - for artists who win an Emmy, Grammy, Oscar and Tony - and, yes, she made her film debut more than 70 years ago. But Rita Moreno doesn\u2019t deserve a documentary because of her endurance. As we learn in \u201cRita Moreno: Just a Girl Who Decided to Go for It,\u201d what drives this lady is what she absorbs from life, the good, bad and, at times, very ugly. From the film\u2019s opening moments, filmmaker Mariem P\u00e9rez Riera creates an informal tone that makes us feel welcome in Moreno\u2019s home and life. We see the legend decorating her living room for her birthday party (laughing as she observes, \u201cif I was a big star, I\u2019d have a staff doing this\u201d) while explaining the reasons she cherishes this annual celebration of life. As the film follows a conventional recipe of movie clips, commentaries and vintage photos, we begin to learn why peace of mind is so essential to a lady who fought many battles on the road to self-acceptance. If the ingredients in this film feel familiar, what sets it apart is Moreno herself. The lady so eagerly welcomes us into her home and her soul, it\u2019s as if we have all been friends for years. She never hesitates to admit who she is, where she came from, how difficult it was to get from there to here, and why she has been so determined to complete the trip. Looking back, she makes fun of all the accents she had to use in movies in the early 1950s (because, as she says, \u201cI played women of every ethnic background\u201d) as well as her memories of being quite serious in the movie version of \u201cThe King and I\u201d (asking, \u201cwhat does it mean to kiss in a shadow,\u201d referring to a lyric she sang.) Moreno relives the excitement of \u201cgetting a real part\u201d in the landmark 1952 musical, \u201cSingin\u2019 in the Rain,\u201d as well as the personal tragedy of her relationship with Marlon Brando. \u201cWest Side Story\u201d changed her journey and, as she remembers preparing to audition, Moreno knows, without question, who the character of Anita is and how to channel through Anita, this powerhouse called Rita. As remarkable as this milestone, the years that follow \u201cWest Side Story\u201d truly define Moreno\u2019s potential as a performer and a person. She continues to fight for roles she knows she is born to play and reinvents herself every few years for new audiences on Broadway and on television, culminating with her explosive turn on the reboot of \u201cOne Day at a Time.\u201d But Moreno refuses to take herself too seriously, never trying to be more than she is while celebrating precisely who she has become. Thank goodness moviemaker Riera so beautifully captures the spirit of this legendary lady, destined to always make us smile. \u201cRita Moreno: Just a Girl Who Decided to Go for It\u201d runs 90 minutes. For more information about this year\u2019s Sundance Film Festival, go to sundance.org\/festivals .