How can I get Beautytips Module to work with Views field output?
You can do this with the BeautyTips module but its not the default behaviour as it does not have Views integration built-in. Fortunately, your BeautyTips use case is rather simple so the approach outlined here will work for you. Specifically, you want to edit your 'Title' field to rewrite it to add a custom trigger class like this:

&lt;span class='btytp' title='[markup]'&gt;[title]&lt;/span&gt;


and then add this to the header of the view:

&lt;?php
drupal_add_js (
  '$(document).ready(function()
  {
    $(".btytp").bt();
  }); ',
    'inline');
?&gt;


However, by doing this you're effectively bypassing the BeautyTips module altogether and won't be using the built-in styles the module provides. Fortunately, this is easy to fix. If you look in the modules file, you'll see all of the styles defined as Arrays that are then converted into a javascript array and used to instantiate the beautytips instance. So for example, if I were using the Hulu style, I would find this array:

  $styles['hulu'] = array(
    'fill' =&gt; '#F4F4F4',
    'strokeStyle' =&gt; '#666666',
    'spikeLength' =&gt; 20,
    'spikeGirth' =&gt; 10,
    'width' =&gt; 350,
    'overlap' =&gt; 0,
    'centerPointY' =&gt; 1,
    'cornerRadius' =&gt; 0,
    'cssStyles' =&gt; array(
      'fontFamily' =&gt; '"Lucida Grande",Helvetica,Arial,Verdana,sans-serif',
      'fontSize' =&gt; '12px',
      'padding' =&gt; '10px 14px'
    ),
    'shadow' =&gt; TRUE,
    'shadowColor' =&gt; 'rgba(0,0,0,.5)',
    'shadowBlur' =&gt; 8,
    'shadowOffsetX' =&gt; 4,
    'shadowOffsetY' =&gt; 4,
  );


All of the values here are what you need to pass to javascript when you invoke it on your own. So, to do this using the code we already have with the Hulu style, that would look like:

&lt;?php
drupal_add_js (
  '$(document).ready(function()
  {
    $(".btytp").bt({
        fill: '#F4F4F4',
        strokeStyle: '#666',
        spikeLength: '20',
        spikeGirth: '10',
        width: 350,
        cornerRadius: 0,
        cornerPointY: 1,
        strokeWidth: 0,
        cssStyles: {
                fontFamily: '"Lucida Grande",Helvetica,Arial,Verdana,sans-serif',
                fontSize: '12px',
                padding: '10px 14px'
        },
        shadow: true,
        shadowColor: 'rgba(0,0,0,.5)',
        shadowBlur: 8,
        shadowOffsetX: 4,
        shadowOffsetY: 4,
        shadowBlur: 8,
    });
  }); ',
    'inline');
?&gt;