i dont think so... my blog have 0 page rank but still its on first page on first position for some long tail keyword and on First page's 6th position for "2012 dvd label" keyword! i think google considering title and content for search result!
PR doesn't matter nowadays at all. Read following article: http://www.mark8t.com/2009/05/09/if-matt-cutts-doesnt-care-about-pagerank-why-should-you/
page rank is showing your website reputation so it matters for you. you can grab more visitors if your site has good Page Rank.