While plagiarism per se is not necessarily grounds for legal action, it is not only "frowned upon" here at The Writer's Box - it is grounds for dismissal.
"Quoting" the works of another author is not plagiarism. Below is Wikipedia's description of plagiarism:
From Wikipedia, the free encyclopedia
Plagiarism is the unauthorized use or close imitation of the language and thoughts of another author and the representation of them as one's own original work.
Within academia, plagiarism by students, professors, or researchers is considered academic dishonesty or academic fraud and offenders are subject to academic censure. In journalism, plagiarism is considered a breach of journalistic ethics, and reporters caught plagiarizing typically face disciplinary measures ranging from suspension to termination. Some individuals caught plagiarizing in academic or journalistic contexts claim that they plagiarized unintentionally, by failing to include quotations or give the appropriate citation. While plagiarism in scholarship and journalism has a centuries-old history, the development of the Internet, where articles appear as electronic text, has made the physical act of copying the work of others much easier, simply by copying and pasting text from one web page to another.
Plagiarism is not copyright infringement. While both terms may apply to a particular act, they are different transgressions. Copyright infringement is a violation of the rights of a copyright holder, when material protected by copyright is used without consent. On the other hand, plagiarism is concerned with the unearned increment to the plagiarizing author's reputation that is achieved through false claims of authorship.
**Note that I have given credit to the "source" of the reference**
**Also note that photographs and video fall under the same/similar regulations**