The phrase "commendable attempt" means trying to do something in a way that deserves admiration or praise, even if the end result is not perfect or successful. Full definition
This study makes a commendable attempt at proposing an answer to this, though as with many early attempts it is limited by the data and techniques available. (sen.com)
In an unexpected turn of events the tunnel dwellers are provided with accommodation when the train company tries to evict them and Singer's commendable attempt to subvert the economy of film becomes redundant. (sensesofcinema.com)
Nevertheless, The Place Beyond the Pines contains a commendable attempt to experiment with film narrative in a way that emphasises the themes of the film. (blog.cinemaautopsy.com)